/Engine/Source/Runtime/Engine/Classes/Engine/StaticMesh.h
Sets the texture coordinates at the specified UV channel index on the given LOD of a StaticMesh.
true if the UV channel could be set.
bool SetUVChannel ( int32 LODIndex, int32 UVChannelIndex, const [TMap](API\Runtime\Core\Containers\TMap)< [FVertexInstanceID](API\Runtime\MeshDescription\FVertexInstanceID), FVector2D > & TexCoords )